Granted Patent
Utility
US 4,360,338 · App. 06/150,940
Control system for dual coil pilot valve burner system
Inventor:
Jay R. Katchka
Patented Case
View Patent ↗
Granted: Nov 23, 1982
Filed: May 19, 1980
Inventor
Jay R. Katchka
Assignee (at issue)
ROBERTSHAW CONTROLS PRIVATE LIMITED
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.